Troubleshooting
Common Problems
10-2
ISSUE
The power cable is not plugged securely into the PC4 power
jack.
REMEDY Plug the power cable securely into the PC4 power jack.
ISSUE
The wall outlet, power strip, or extension cord is defective or
damaged.
REMEDY Use a different wall outlet, power strip, or extension cord.
If there’s evidence of the unit receiving power, but operation is abnormal, check if one of the
following might be the issue:
ISSUE The wall outlet voltage is below 90 volts due to overload.
REMEDY Try a different outlet on a different circuit.
Display “Brightness”
ISSUE The Display is blank or difcult to read.
REMEDY
Slowly turn the Display brightness knob (located above the Navi-
gation buttons) to adjust the Display.